"The Western Australia Health Department is playing down fears a mystery horse virus has been contracted by humans and a vet treating the horses says nobody should be alarmed.
"At least 18 horses on four properties in the Swan Valley and South West have developed small solid lumps on their mouths.
"People who have had contact with the horses have also reported they have developed similar lesions in their mouths."
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@FranJurga writes: This is a classic "please don't be alarmed, but..." story. Two weeks ago, an ABC report detailed the mysterious symptoms in the horses and said there was no danger of it being contagious to humans. But what is it? This is a story worth following!